General

Oh wow, I got a mention! -Blush-

Some small things:
Pay attention to shapes. If you're having trouble figuring out the shape of something, switch to thinking of drawing the shape around what you're drawing. Yes, observe the negative space if your positive space feels off.
Pay attention to how light and dark certain areas are. Is this part lighter or darker than the other? Think of their shapes as well. Or just spam multiply and play with opacity of the 57 layers made. Exaggeration.
Shortcut commands are awesome. Hold shift when resizing something to make sure the proportions don't get lost. [ and ] increase or decrease the size of your brush so that you don't have to keep clicking the right size. Holding space allows you to look around your drawing by dragging the stylus.
Make looots of layers. Don't be afraid to experiment with them! Multiply makes the layer transparent, but at the same time darkens the layer underneath it where applied. Luminosity gives awesome little halos when at a low opacity. Everything else goes white. Overlay brightens up images. Try doing it with every color.

Save often! You might never know when a power outage or a zombie apocalypse might happen.

Draw a lot and draw all the time
Look more at what you're drawing than at what you're putting down on the paper. For example if you're looking at a tree, try to follow the tree with your eye versus following your pencil on the page. Have a good grasp of realism before jumping into cartoons.

I'm glad you like my art, thanks for the compliment.

Well, generally, it's easier to start out with practicing traditional art, but if you want to do digital art, you should get a tablet. Before you decide on that, you should take a look at the programs you might want to use, and possibly download the program to see if you like them or if you can get used to them. Watching speedpaints using the program can help you get the feel of it as well. Some art programs include Paint Tool Sai, Photoshop, Firealpaca, and Mypaint.
It takes a bit to get used to digital art programs for some people, so don't immediately ragequit if it doesn't work out the first few times. You should also learn a bit of color theory and figure out what colors you like to use to help your art look better.

Also some tips for drawing in general:
- Study from real life
- When you use reference images, don't just copy the picture. Draw the parts you can, and then study the parts you don't know how to
- It helps to learn realism and proportions before you do stylized art
- Don't avoid drawing things you're not good at. For example, hiding hands behind the character's back, or just not drawing the bottom half of a person
- Practice a lot in your free time
- Study other people's art for techniques you might want to use.

Just start, as a beginner you think you need some magical pathway or guidance to the top but don't get so caught up in finding the best way up the mountain that you never even take a step. Make garbage art, see where you went wrong and work on your flaws. Remember that it doesn't take time but also a certain attitude to improve, good artists generally think their work is crap, or at least think it could be better. Draw all day, and if you're serious about improving never hold your own work as 'good'.

Also, aim higher, basil artists are lulz tier. Off the top of my head as people to aim to are:

Craig Mullins, Jaimie Jones, Ruan Jia, Kim Jung Gi , Dean Holdeen or the plethora of Japanese Anime Artists on Pixiv's front page if you are so inclined towards anime like 90% of basilers.

Looking at other artists' processes, WIPs, and tutorials is where it's at. Figure out what they're better at than you, and then figure out how they do it. No one artist can teach you how to draw, since everyone draws in different ways and has different skillsets. You want to build up your knowledge from as many different artists as you can. I recommend this especially if you want to learn digital painting, which for me, was super super hard to figure out at first.

Learning by observing real life and stock photographs is also incredibly helpful, but it won't necessarily teach you how to draw so much as teach you what something you want to draw looks like. Don't be afraid to google anatomy references or what teeth look like, or whatever you know you don't know.

I also suggest following artists you want to learn from on their tumblrs, twitters, or instagrams, because that's where they'll probably post their works in progress, sketches, and other things that don't have the polish of a finished project. Then, you'll be able to see how they work, which is useful if they don't really post processes or WIPs on their portfolio sites.

Portfolio sites such as cgsociety.org/ or www.artstation.com/ are useful if you want to know what professional grade art from a wide variety of artists looks like. Plus, the artists there will occasional post their processes or WIPs, or have links to the places they do post their processes or WIPs.

Buy a tablet, first off. There's loads of tutorials on Deviantart and on the internet in general.

Give up, you will never be as good as them.